let CryptoJS = require("crypto-js");
// 默认的 KEY 与 iv 如果没有给
const KEY = CryptoJS.enc.Utf8.parse("1234567890123456");
const IV = CryptoJS.enc.Utf8.parse("1234567890123456");

/**
 * AES加密 ：字符串 key iv  返回base64
 */
export function Encrypt(word: any) {
  let key = KEY;
  let iv = IV;

  /*
        if (keyStr) {
            key = CryptoJS.enc.Utf8.parse(keyStr);
            iv = CryptoJS.enc.Utf8.parse(ivStr);
        }
    */

  let srcs = CryptoJS.enc.Utf8.parse(word);
  var encrypted = CryptoJS.AES.encrypt(srcs, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.ZeroPadding
  });
  // console.log("-=-=-=-", encrypted.ciphertext)
  return CryptoJS.enc.Base64.stringify(encrypted.ciphertext);
}

/**
 * AES 解密 ：字符串 key iv  返回base64
 *
 */
export function Decrypt(word: any) {
  let key = KEY;
  let iv = IV;

  /*   if (keyStr) {
           key = CryptoJS.enc.Utf8.parse(keyStr);
           iv = CryptoJS.enc.Utf8.parse(ivStr);
       }*/

  let base64 = CryptoJS.enc.Base64.parse(word);
  let src = CryptoJS.enc.Base64.stringify(base64);

  var decrypt = CryptoJS.AES.decrypt(src, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.ZeroPadding
  });

  var decryptedStr = decrypt.toString(CryptoJS.enc.Utf8);
  return decryptedStr.toString();
}
